Alarm housing



FIG. 1 is a perspective view of an alarm housing showing my new design;

FIG. 2 is a front view thereof;

FIG. 3 is a first side view thereof;

FIG. 4 is a rear view thereof;

FIG. 5 is a second side view thereof;

FIG. 6 is a top view thereof; and,

FIG. 7 is a bottom view thereof.

The broken lines shown in FIGS. 1-7 form no part of the claimed design. 

The ornamental design for the alarm housing, as shown and described. 